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findCirclesGrid frequently finds edges of circles rather than centers

asked 2014-04-07 17:40:16 -0500

Lucas Walter gravatar image

The original file:

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The results of findCirclesGrid with a width of 5, height of 9, and cv::CALIB_CB_ASYMMETRIC_GRID:

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Should it be doing this poorly (2.4.6)?

I'm going to experiment with adaptive thresholding or some other preprocessing to see if it can improve the results.

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answered 2014-04-07 18:09:43 -0500

Lucas Walter gravatar image

updated 2014-04-07 18:11:47 -0500

Oops this is the result of applying cornerSubPix to circle grid results...

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Asked: 2014-04-07 17:40:16 -0500

Seen: 644 times

Last updated: Apr 07 '14